Fastening pulling machine



July 9, 1946., E. STEIMEN FASTENING PULLING MACHINE Filed July 10,-1945 2 Sheds-Sheet 1 L Jfiventor ZawrenoeE J'eime'n.

July 9, 1946? L E. STEIMEN 2,403,621

FASTENING PULLING MACHINE Filed July 10, 1945 2 Sheets-Sheet 2 Inven tor Zaun-e'nce E1 fiiei'm'n Patented July 9, i946 UNITED STATES PATENT I CE V 2,403,621 V I FASTENING {PULLING Lawrence E. Steimen, Beverly, Massi, assign tp United Shoe Machinery Corporation, Fleming- "'tonQN. 2]., a corporation of NewJersey Application; rely-1c, 1945 ,'-Serial.;No 604,217

c '1 v This invention relates'to improvements in lfas-v tening pulling machines, and .is herein illustr ted .a-S. .embdie.d in a machine. 'forpufing tacks from shoes.

.In h manufacture of shoes in the removal oi tempor ry f asteni gs inserted in the shoes, such as lasting :tacks or staplesior insole tacks, it has heretofore been customary to make use of a pick .or claw tool, which is moved in an orbital path to pull th 'f ening from the shoe. Commonly, in order to make itpossihlejior the operator to observe the action of the Stool at the operating point, the path ofpmovement .of the tool in pull- ,inga fastening is 'in aforward direction, that is,

' presentjinvention to provideanimprovedfastenling pulling machine, which, while provi in an unobstructed viewv of the operating point; will at the same time be so constructed and arranged to prevent ,iastenings from being thrown toward the operator. I

c To this end andas .illustratedlhave movided in a machine of the type referred-tea fastening pulling tool movable in an orbital path, there some of these have been generally being. a work .rest extending along .a portionof the path, and a guard member extending across thepath in position to arrest ,forward movement of fastenin'gs pulledlfror'n the work by the tool;

Preferably and as shown, the guard .member comprises a spring pivotal-lymounted upon por tionsiof ia-work rest extending upon opposite sides .of the path of the toolzand .iseonstructedand .arranged to span the space betweenzthe Po tions. The free end of "thespri-ngis spaced :from that portion :of :the path along which engagement of the tool with a fastening takes place, so that the operator can readily visually locate-the fastening to be pulled relatively to the tool. "There is provideda 'carn associated with the tool for-moving the spring outwardly during the pullingoperation, so that as the fastening is pulled the spring is positioned between t efasterfing and the operator, and upon rearward movement 'of the the spring operates to throw the fastemngs rearwardly. "These and other features of the invention are disclosed .in the following specification and inithe accompanying drawings, and are set forthin the claims. Inthe drawings,

F g. 1 is aside viewypartlyin section, or a I tinn of :aTasteniu-g pulling machine .embodying rrrre'form'otmyinvention;v I

Fig. 2 is afrontengi view .of the-portion of the 'machine Shown'in "Fig j1-; and I Figs. '3 and 4 aresideviews of the machine 03f Fig; 1 with the parts in difierent positions to i1- lustrazte the cycle of operation of the machine. I I

The "inventionxis illustrated as embodied in a fastening'puiiing machine of the type ,disclosedin United States Letters Patent No, 2,266,124, granted December :16, 19141, upon application 'file'd "in t'he -name of Harry Lyon, to which reference maybe had for a disclosure of portions 10f the marrhinenot hereinillustratedin detail.

As shown in Fig. 1,{thefmachine,0ml 1f ses a tack pulling tool .130 mounted for movement in an oscillatory path along awor'k rest '12 -for pulling insoletacks 1:4 from a shoe l6. v

The 'tack pulling tool is inthe Iorm of a chisel and is positioned in aitool holder 18 cariiedat the lower :end .of a tack "puller bar 20 arrangedtooscillate on a pin '24 .mounted .on a pivot 26 on a portion "28 .of the frame of the machine. The tack puller bar is moved about the :pivot'2'6 [and along the pin 2'4 by mechanism "(not shown) for producing an ;o'rbita1 movement of the'tackpuller tool along a path. indicated by the dashed line 30. For .a more complete de- 'seription of the construction "and operation of the machine'thus far described, referencev may behad toJthe aforementioned United States Letters Patent. v V The pulling "mechanism "is supported by a "column 32, which has a lateral projecting bracket "3 4 to whi-c'h'the work-rest l 2 is secured: f To this end; the work :rest has a "rearwardly extending portion 36 resting in arecess "38. in the bracket increasing distance in anupward direction, forn mg substantially a V-shaped opening. The work rest is ,positionedso that thearms 42 and the upwardly extending'portions M are located u'pon to permit the tool in its movement to project beyond. the arm for a short distance alongthe path, as is necessary in order that the tool may penetrate into the insole of the work in pulling a fastening therefrom. I

Provision is made for arresting forward movement of fastenings pulled from the work, said means comprising a leaf spring 46 secured by bolts 48 to a crosspiece 50, which, in turn, is secured to portions 44 by screws 52.

The spring is straight for a short distance, and then curves inwardly, as shown at 54, and then outwardly at its lower end, as shown at 56. The lower end portion. of the spring in itsnormal position, as shown in Fig. 1, is somewhat above the lower portion of the path of movement of the tool, and is-jsubstantially in line with the portion of the path of the tool during its movement in pulling a fastening. Inward movement of the spring is limited by a cam 58 formed on the outer end of the work holder l8. This construction is such that, as the tool is moved in it orbital path, the cam 58 will engage the curved portion 54 of the spring and gradually .force it outwardly and downwardly across the path of the tool, as shown in Figs. 1, 3 and 4. For example, as shown in Fig. 1, the tool is in its fastening pulling position, that is, along the operative portion of its path with the spring. somewhat above the tool. As shown in Fig. 3, the tool has been moved out- .wardly and upwardly to effect removal of a tack and, inthe meantime, the cam 58 has forced the spring outwardly. beyond the tool and the pulled tack, thus preventing movement of the tack in a direction toward the operator. Fig. 4 shows the parts in position with the tool moving inwardly and downwardly in the latter half of its cycle, and .the spring, which has just been released from the cam, is in engagement with the end of the tool, and is in the act of forcing the tack in a rearward direction.

In order to dispose of the pulled fastenings, the work rest is .provided with a floor extending between the two arms 42 from a point adjacent to but rearwardly of the operating part of the tool path and extending rearwardly close to the shank portion 35 of the work rest. A chute 62 is secured tothe underside of the bracket 34 by means of a bolt 64. The chute has an upwardly extendinglip positioned below the inner edge of the floor 60, arranged to receive fastenings which drop off the floor. To the inner end of the chute is connected a hose'68' which serves to direct fastenings, which drop into the chute, into a receptacle 10. 1 In order to arrest movement of pulled fastenings in lateral directions, the work rest has secured thereto two screen plates 12 extending between the horizontal arms 42 and the upwardly extending arms 44 on each side of the tool holder.

In the operation of the machine, a shoe,.such as shoe [6, with insole tacks to be pulled is presented to the work rest, the shoe moved in such direction as to locate the tack to be pulled in line with-the path of movement of the tool I0. .By movement of the tool in its orbital path, the tack will be removed from the insole and moved forwardly and upwardly, during which time the spring 46 will engage the tack, arresting its forward movement, and upon rearward movement of the tool the spring will throw the tack rearwardly away from the operating point of the machine. The guard thus is operative not only to prevent the forward movement of the fastenings out of the machine, but operates to direct them toward the chute 62', where they can readily be removed from the machine' Upon inspection of Fig. 2, it will be noticed that the guard or spring 46 extends downwardly, spanning the space between the arms 44 of the work rest, but that the guard does not cover the tool at its initial operating point, that is, at the point where the pulling operation commences. Consequently, the operator is at all times ableto see the tool at its operating point, which facilitates thepresentation of the fastening in proper position to be pulled.

Having described my invention, what I claim asnew and desire to secure by Letters Patent of the United States is;

1.. A fastening pulling machine comprising a pulling tool mounted for movement in an orbital path, a work rest adjacent to .the pathof the tool and having portions extending upon opposite sides of the path, supporting members extending upwardly from the work rest, and 'a leaf spring pivotally mounted at the upper ends of the supporting-membersand constructed and arranged substantially to span the space between the members for arresting forwardrnovement of fastenings pulled from the work bythe tool.

2. A fastening pulling machine comprising a pulling tool mounted, for movement in an orbital path, a work; rest adjacent to the pathof the tool and having portions extending upon opposite sides of the path, spaced supporting members extending upwardlyv from the work rest, and a guard member pivotally mounted upon the supporting members and'extendingacross a portion of the path of the tool for arresting forward moveinerlit of fastenings pulledfrom the work by the 3. A fastening pullin machine comprising a frame, a pulling tool mounted in the frame for movement in an orbital path, a work rest carried by the frame and located adjacent to the path of the tool, said work rest having upwardly extending portions positioned upon opposite sides of the path of the tool, and a guard member pivotally mounted upon said portions and extending across a portion of the path of the tool for arresting forward movement of fastenings pulled from the work by the tool.

4. A fastening pulling machine comprising a pulling tool mounted for movement in an orbital path, a bifurcated work restextending on opposite sides of the path of the tool and adjacent thereto, a leaf spring carried by the work rest and extending across the path of the tool, and

means associated with the tool for moving the spring outwardly away from the path of the tool during initial movement of the tool'in pulling a fastening. I

'5. A fastening pulling machine having a pulling tool mounted for movement in an' orbital path, a work rest adjacent to the path of the tool and having portions extending upon opposite sides of the pathand forwardly and upwardly beyond the path, a leaf spring pivotally mounted upon said portions and constructed and arranged. to span the space between saidportions forwardly of the path of the tool, the spring having'an inwardly extending central portion and an outwardly extending lower end portion located adjacent to the portion of the path in which the tool moves upwardly in pulling a fastening from work presented to the work rest, and a cam associated with the tool for engaging the inwardly extending portion of the spring during movement of the tool for controlling the position of the lower end portion of the spring relatively to a fastening being pulled.

6. A fastening pulling machine comprising a 10 pulling tool mounted for movement in an orbital path, guard members positioned upon opposite sides of the path of the tool, a leaf spring pivotally mounted upon the guard members and extending across the space between the members beyond the tool, and a cam operable in timed relation to the tool for moving the spring outwardly during movement of the tool. in pulling a fastening.

LAWRENCE E. STEIMEN. 

